Warning: include(01-04-57.php) [ function.include ]: failed to open stream: No such file or directory in /home/content/06/11607406/html/sortcode/content.php on line 3.
San Tan Valley, AZ Weather. The average temperature of San Tan Valley is 71.43Â°F, which is much higher than the Arizona average temperature of 65.97Â°F and is much higher than the national average temperature of 54.45Â°F. Historical Weather. Heating Cost Index, #76.
the central valley areas are hot in summer while chilly and foggy in winter most of southern california los angeles san diego and the like are protected from extreme temperatures because of the surrounding mountain ranges so coastal cities are generally a bit cooler in summer